Not all of us have heated windshields in our cars. Which is an absolutely great de-icing aid. Especially if independent heating is still available. You start it, press the button, and before you know it, the ice on the glass starts to melt.

Although you will have to sweep away fresh snow anyway, it will certainly save you a lot of work. But what if you don’t have a heated window? Can you pour warm water on the glass? She will melt the ice after all. Or not?

The use of hot water on a frozen car window has long been debated. Some say they’ve been doing it for years and nothing has ever happened to them, others warn that the window might crack. And indeed, many people have already had their windshield cracked during such an attempt. So where is the truth and what about it?

No hot water, but lukewarm should not be a problem

Pouring boiling water over a frozen car is a nonsense that probably doesn’t occur to anyone. Although there are several videos on the Internet where nothing happened to the glass, the risk is still high.

Ice on the glass can be easily removed with just lukewarm water. It is enough if it is at room temperature, or at most the temperature at which you wash your hands. We did not come across a case where the windshield cracked.

Foto: Shutterstock / mkrberlin

We still meet cars on which the driver has just quickly scratched out such a tank window. You can probably imagine how “good” an overview of the surrounding situation the driver of such a car must have.

But don’t take it as our recommendation and try it at your own risk. It certainly depends on the material of the window used and whether it is fixed in the frame, for example, with a more flexible rubber seal (which can compensate for the expansion due to heat), or with a harder glue, which is no longer so flexible. And it probably also depends a lot on the quality of the glass itself. We would be quite skeptical about cheap non-original substitutes.

Photo: Shutterstock / Rizvanov Ruslan

The appropriate chemistry will quickly melt the ice, but it is more suitable for defrosting locks, mirrors, wiper blades or lights. You would use so much antifreeze on large window surfaces that you would not pay for it.

Of course, the car needs to be cleared of snow first, only then can the window and wipers be watered. It is an effective way to quickly get rid of frost on the window without lengthy scraping. You just need to thoroughly clean the wiper blades and remove ice from them. And most importantly, wipe the window so that the water doesn’t freeze on it again.

Beware of low-quality scrapers and other tools

If you prefer the traditional scraping method, it will take longer and you’ll get a little rough. But it works. You just need to use a quality scraper that is only used for glass.

Foto: Shutterstock / trendobjects

Avoid metal tools. The scraper should be made of strong and high-quality plastic. You can also scratch the car glass relatively easily.

Unfortunately, we’ve seen many cars with scratched windows, either from a metal scraper originally intended for construction work, or from a too-soft one with small stones stuck in it (and they scratch the window). Also be careful around plastic and rubber door and window seals.

In particular, do not use things like a shovel, rake, etc. to clean the car. The paint on the body only has a certain hardness and the metal shovel is really inappropriate.

What is prevention?

Advising someone who searches in vain for a parking space in a housing estate every night to park in a garage is truly “princely advice”. Many people liked to cover the windshield, either with cardboard, a blanket, or something similar. There are also cover films, but they serve mainly as a shade in the summer. Of course, this works to a certain extent, but then you have to have somewhere to put the blanket full of water and snow (or cardboard or cardboard).

Photo: Martin Žemlička

Even the insulating film works and can be used repeatedly, you just have to have somewhere to hide it. Cardboard is an emergency one-time solution and most of the time the moisture will disintegrate and the pieces of paper will freeze to the glass anyway

A relatively functional, or at least life-simplifying method, is the application of so-called “liquid wipers”, which is a hydrophobic ceramic glass protection.

It mainly works in the rain, but the advantage is that with a high-quality applied preparation (the surface needs to be thoroughly degreased and cleaned by machine using a polisher with a special wheel and cleaning agent) the window will really freeze less, or even at all. Alternatively, the icing can be removed very easily.